Re: Kernel crash in 2.6.0-test9-mm3

[Reuben Farrelly <reuben-linux@xxxxxxxx>]

Ok I'll take this up with jakub@redhat, the gcc package maintainer at Redhat.

What is interesting (or scary) is that the version of gcc that I'm using 
(3.3.2-2) is only one rebuild out from the one shipped in Fedora Core 1 
(3.3.2-1), so I may not be the last person to hit this problem..

Reuben


At 04:02 p.m. 20/11/2003, David S. Miller wrote:
> On Thu, 20 Nov 2003 16:05:27 +1300
> Reuben Farrelly <reuben-linux@xxxxxxxx> wrote:
>
> > Yes - with the patch backed out, the system has been up for 20 hours
> > without a crash and nothing has been logged.  I was just holding off a bit
> > longer before reporting back in case it just needs a bit more time to
> > trigger ;-)
>
> Thanks a lot for this feedback.
>
> I really think gcc-3.x you're using is miscompiling some parts of
> the kernel with the patch applied.  Someone should look at the
> x86 output assembler for things like the atomic_dec_and_test() call
> in net/core/skbuff.c:kfree_skbmem()